Mining industry groups say a ban on the filing of new hard rock mining claims near the Grand Canyon is irresponsible public policy, but the federal government and conservationists say it will protect water flowing through the canyon from potential contamination.

A uranium mining company that was sinking a shaft for a mine south of Grand Canyon National Park has put the work on hold, citing market conditions and the expense of litigation. Energy Fuels Resources Inc. said the operation will ...

As chief lobbyist of the National Mining Association, it falls on Hal Quinn, the group’s president and CEO, to promote his industry. That means defending coal mines and, ultimately, America’s reliance on the fuel source to power homes and businesses.

Arizona’s metal mining and manufacturing industries produced about 84.5 million pounds of toxic chemicals in 2011, a nearly 34 million pound increase from just two years earlier, the Environmental Protection Agency reported.

WASHINGTON – A consortium of federal and tribal agencies reported Jan. 24 that a five-year, $110 million project to clean up uranium contamination in the Navajo Nation had addressed the most urgent risks there.